Hospitals profit from surgical errors, study finds

Hospitals make money from their own mistakes because insurers pay them for the longer stays and extra care that patients need to treat surgical complications that could have been prevented, a new study finds.

Hospitals make money from their own mistakes because insurers pay them for the longer stays and extra care that patients need to treat surgical complications that could have been prevented, a new study finds.

Changing the payment system, to stop rewarding mistakes, may help to bring down surgical complication rates, the researchers say. If the system does not change, hospitals have little incentive to improve: In fact, some will wind up losing money if they take better care of patients.

The study and an editorial were published Tuesday in The Journal of the American Medical Association. The study authors are from the Boston Consulting Group, Harvard’s schools of medicine and public health, and Texas Health Resources, a large nonprofit hospital system.

The study is based on a detailed analysis of the records of 34,256 people who had surgery in 2010 at one of 12 hospitals run by Texas Health Resources. Of those patients, 1,820 had one or more complications that could have been prevented, like blood clots, pneumonia or infected incisions.

The median length of stay for those patients quadrupled to 14 days, and hospital revenue averaged $30,500 more than for patients without complications ($49,400 versus $18,900). Private insurers paid far more for complications than did Medicare or Medicaid, or patients who paid out of pocket.

The authors said in an interview that they were not suggesting hospitals were trying to make money by deliberately causing complications or refusing to address the problem.

“Absolutely not,” said David Sadoff, a managing director of the Boston Consulting Group. “We don’t believe that is happening at all.”

But, he said, the current payment system makes it difficult for hospitals to perform better because improvements can wind up costing them money.

Susan Pisano, a spokeswoman for America’s Health Insurance Plans, a trade group for insurance companies, said in an interview that the study illustrated that the entire health care system needed to move away from what she called “the perverse incentives of the old fee-for-service system that emphasized quantity over quality, and toward methods of payment that reward better care.”

The researchers say that to help lower complications, insurers not only should quit paying for substandard care, but also should reward excellent care with bonuses. In addition, hospitals should be required to disclose their complication rates, because patients will shun those with high rates and force those hospitals to improve or shut down.

Barry Rosenberg, an author and a managing director of Boston Consulting, said the study came about because his firm was working with Texas Health Resources to find ways to reduce its hospitals’ surgical complication rates, which, at 5.3 percent, were in line with those reported by similar hospitals. Part of that work involved analyzing the costs, and he said the team was stunned to realize that lowering the complication rates would actually cost the hospital money.

“We said, ‘Whoa, we’re working our tails off trying to lower complications, and the prize we’re going to get is a reduction in profits,’ ” Rosenberg said in an interview.

The authors focused on one particular figure, called the contribution margin, which is an important measure of a hospital’s income and ability to cover its costs. They noted that when complications occurred, this measure tripled for patients with private insurance and doubled for those on Medicare.

Dr. Mark C. Lester, a study author and the executive vice president of Texas Health Resources, said its hospitals had begun to use a checklist system to help prevent complications. Dr. Atul A. Gawande, a Harvard surgeon who is a pioneer in using checklists and who took part in the Texas study, helped develop the system. Surgical checklists involve deceptively simple-sounding practices like double-checking the patient’s identification and what part of the body is being operated, and making sure that drug allergies have been noted and proper medications given.